| Tail Number / N-Number | N8421U |
| Manufacturer | CESSNA |
| Model | 172F |
| Manufacturer's Serial Number | 17252321 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | 0-300 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 145 hp (108 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WALTER JACK S |
| Street | 316 VERONA ST |
| City | ONEIDA |
| State | NY |
| Zip Code | 13421-1121 |
| Region | Eastern |
| County | Madison County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Multiple |
| Airworthiness Date | 1991-05-29 |
| Certificate Issue Date | 2020-11-20 |
| Last Action Date | 2020-11-20 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 52704725 |
| Mode S Code Hex | AB89D5 |